Sex of subjects
Reproductive stages
Species or experimental model
Effect of wolfberry component
Reference
Male♂
Mating
Rats, hemicastrated
Shortened penis erection latency, mounts latency
Luo et al. 2006
Increased successful mount percentage
Rats
Promote penile erection
Sohn et al. 2008
Penile expression level of eNOS/nNOS increased
Rats, treated with high dose corticosterone
Increase CE and ejaculation frequency
Lau et al. 2012
Decrease ejaculation latency
Reverse suppressed neurogenesis in subventricular zone and hippocampus
Rats, hemicastrated
Improve CE of hemicastracted rats
Luo et al. 2006
Mouse testicular tissue
Prevent the structural damage of the seminiferous tubules
Prevent DNA damage caused by H2O2
Mouse seminiferous epithelium
Reduced structural damage of seminiferous epithelium
Wang et al. 2002
More motile spermatozoa
Rats, with BPA treatment
Prevent detrimental effect caused by BPA in terms of: increase the weight of testis and epididymis
Zhang et al. 2013
Prevent the decrease in the level of sex hormones
Decreased level of proapototic marker, e.g., Bax
Suppressed oxidative stress
Rats, treated with DOX
Prevents detrimental effect caused by DOX in terms of: preserved weight of the testis and epididymis—prevent degenerative changes (depletion of germ cells, irregular seminiferous tubules and scarcity of spermatogonia)
Xin et al. 2012
Prevent the decline of sperm quantity and quality
Attenuate the increased oxidative stress in testicular tissues
Rats, exposed to ionizing radiation
Prevents detrimental effect caused by ionizing radiation in terms of: repair the damage in testicular cells
Luo et al. 2011
Regulate the serum testosterone level and
Maintain histological integrity of testicular tissue
May have antiapoptotic effects against irradiation
Luo et al. 2014
Female♀
Mating
Rabbits
Induce ovulation after injection of crude extract of wolfberry
Suzuki et al. 1972
Mating
Frozen porcine oocyte
Increase maturation rate
Huang et al. 2008
Gestation
Human, single case
A woman with premature ovarian failure and secondary amenorrhea had ovulation returned and conceived after 3 months of therapy
Chao et al. 2003
Offspring
Rats, offspring
Reduce the impairment in memory and learning deficiency of female offspring which were subjected to prenatal stress
Feng et al. 2010
Both sexes
Mating
Normal human
Drinking wolfberry juice showed
Amagase and Nance 2008, 2009
Subjective report of increased sexual ability and activity
Elevated level of in vivo antioxidant markers including SOD and GSH-Px in plasma
Conclusion
Apart from protecting the DNA and alleviating the reproductive tissue damage due to hypothermia, oxidative stress, and radiation, the fruit also protects testis from damage by environment pollutant like BPA. Female fertility is also restored by a herbal medicine containing wolfberry. The fruit also shows protective effect to the cognitive function of offspring with prenatal stress. Different pieces of evidence have shown that L. barbarum would be an all-round aphrodisiac agent that not only improves the sexual function of male individual and the fertility of female, but also the general health of both male and female. These beneficial effects imply L. barbarum would be a potent functional food. Nevertheless, the drug interaction between the fruit and common drugs, especially drugs for chronic diseases, still need to be clarified, in order to utilize wolfberry as an adjunctive therapy for sexual dysfunctions. Yet, further studies may be needed to determine the therapeutic dosage of wolfberry as the quality control of the fruit and the active components are still being elusive.